Different rehabilitation exercises should be carried out at different stages after right elbow comminuted fracture, mainly focusing on joint mobility training and muscle strength training. Taking postoperative rehabilitation as an example, the specific treatment program should be formulated by professional doctors according to the patient’s specific situation. 1. 0~2 weeks after surgery: the main focus is on controlling inflammation and edema, and protective braking. At this stage, active movement of neighboring joints such as finger, wrist and shoulder joints can be carried out, and the upper limbs can be elevated to promote the absorption of inflammation. 2. 2~8 weeks after surgery: the main focus is to restore the elbow joint and forearm in the pain-free range of maximum activity. Perform passive or assisted lower forearm and elbow activities, and also perform muscle contraction and relaxation exercises to prevent muscle contracture. 3. 8 weeks~6 months after surgery: the main focus is to fully restore joint mobility, muscle strength and endurance, and gradually return to normal life. Active full range of elbow joint activities can be carried out, and resistance training increases muscle strength and strengthens function. Rehabilitation exercises for comminuted fracture of the right elbow joint should be carried out under the guidance of professionals, so as to avoid secondary injury and aggravation of the condition.